# Safe OpenSig vs FrankenTTS

The clearest difference is update cadence: FrankenTTS at daily against Safe OpenSig's every 2 weeks. Safe OpenSig's advantage is iOS requirement (12.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Safe OpenSig ships an update every 2 weeks, FrankenTTS daily. The most recent releases landed on October 1, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Safe OpenSig | FrankenTTS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/frankentts/id6799983897/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Daily** |
| Monetization | — | Free |
| Size | 38 MB | 14 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac** |
| Age rating | 17+ | 4+ |
| Developer | [SEDNAOUI MARC JOSEPH RAYMOND GEROGES](https://appshunter.io/developer/1652484508) | [Jeffrey Emanuel](https://appshunter.io/developer/1729309695) |

## What reviewers say

### Safe OpenSig

[App page](https://appshunter.io/ios/app/safe-opensig/id6758047640)

**In-app purchases:** none


### FrankenTTS

[App page](https://appshunter.io/ios/app/frankentts/id6799983897)

Transform text into speech using your device's processing power. Clone voices from short recordings and manage them privately. Share voice fingerprints or export audio and video.

**Highlights:** On-device text-to-speech, Voice cloning from recordings, Private voice library, Shareable voice fingerprints, Editable random seed for synthesis, Real-time factor measurement, M4A audio and MP4 video export

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Safe OpenSig free?

Safe OpenSig is free to download, with no in-app purchases.

### Is FrankenTTS free?

FrankenTTS is free to download, with no in-app purchases.

### Do Safe OpenSig or FrankenTTS have ads?

Neither Safe OpenSig nor FrankenTTS shows ads.

### Which is updated more often, Safe OpenSig or FrankenTTS?

Safe OpenSig ships an update every 2 weeks, and FrankenTTS daily. Most recently, Safe OpenSig was updated on October 1, 2026 and FrankenTTS on September 21, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*